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Codonopsis lanceolata, called deodeok in Korea, is a hardy perennial climbing vine with a tuberous root, grown for its edible root and bell-shaped purple flowers. Give it moist, well-drained soil and full sun to semi-shade, and expect it to die back each winter.
Codonopsis lanceolata, also called deodeok (더덕), todok, or lance asiabell, is a flowering plant native to East Asia (China, Japan, Korea, and the Russian Far East). It is a variety of bonnet bellflower.
Codonopsis lanceolata grows in moist areas in woodland on low hills or mountains at an elevation of 200–1600 m. The plant grows best in light and medium-well drained soils with plenty of moisture with a neutral to semi-acidic pH and in full sun to semi-shade. It will grow to a height of 15 feet (4.6 m) high, blooming in late summer, but it dies back each winter. The flower blooms from August to September, and the seeds ripen from September to October.
The plant may be propagated by seeds that are surface-sown onto acidic soil. Division is also possible, although the plant is intolerant of root disturbance and is especially vulnerable at young stages to slugs. It is hermaphroditic and may be pollinated by bees and wasps.
Text excerpted from the Wikipedia article Codonopsis lanceolata by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
